公开(公告)号：US10756607B2

公开(公告)日：2020-08-25

申请号：US16186472

申请日：2018-11-09

Applicant: DENSO CORPORATION

Inventor： Yoshiaki Takemoto ,  Masashi Matsuda ,  Yusuke Morimoto

IPC: H02K1/22 ,  H02K21/14 ,  H02K1/14 ,  H02K1/27

Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section. At least ones of the claw-like magnetic poles of the rotor and the claw-like magnetic poles of the stator are formed in a shape in which circumferential centers of distal end portions are shifted in the circumferential direction with respect to circumferential centers of proximal end portions.

公开(公告)号：US20190097510A1

公开(公告)日：2019-03-28

申请号：US16186472

申请日：2018-11-09

Applicant: DENSO CORPORATION

Inventor： Yoshiaki Takemoto ,  Masashi Matsuda ,  Yusuke Morimoto

IPC: H02K21/14 ,  H02K1/27 ,  H02K1/22 ,  H02K1/14

CPC classification number: H02K21/145 ,  H02K1/145 ,  H02K1/226 ,  H02K1/2706 ,  H02K1/2713 ,  H02K1/2733

Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section. At least ones of the claw-like magnetic poles of the rotor and the claw-like magnetic poles of the stator are formed in a shape in which circumferential centers of distal end portions are shifted in the circumferential direction with respect to circumferential centers of proximal end portions.